Which of the following is a nonrenewable energy source that comes from the remains of dead organisms?
a. Gasoline
b. Solar power
c. Geothermal heat
d. Hydroelectricity

Draw two cyclic constitutional isomers of cis-1

Which statement best describes the he properties of iconic compounds ?

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?